Organometal complex and light-emitting element using the same

Abstract

An organometallic complex according to the present invention comprises a structure represented by the following general formula (1). In the formula, R 1 to R 5 are any one selected from the group consisting of hydrogen, a halogen element, an acyl group, an alkyl group, an alkoxyl group, an aryl group, a cyano group, and a heterocyclic group, Ar is an aryl group having an electron-withdrawing group or a heterocyclic group having electron-drawing group, and M is an element of Group 9 or an element of Group 10.

1. An organometallic complex comprising a structure represented by the following formula (1), 
       
         
           
           
               
               
           
         
         wherein each of R 1  to R 5  is any one selected from the group consisting of hydrogen, a halogeno group, an acyl group, an alkyl group, an alkoxyl group, an aryl group, and a cyano group, 
         wherein Ar is an aryl group having any one selected from the group consisting of a halogeno group, a haloalkyl group, and a cyano group, and 
         wherein M is an element of Group 9. 
       
     
     
       2. An organometallic complex comprising a structure represented by the following formula (2), 
       
         
           
           
               
               
           
         
         wherein each of R 1  to R 5  is any one selected from the group consisting of hydrogen, a halogeno group, an acyl group, an alkyl group, an alkoxyl group, an aryl group, and a cyano group, 
         wherein each of R 6  to R 9  is any one selected from the group consisting of hydrogen, a halogeno group, a haloalkyl group, an acyl group, an alkyl group, an alkoxyl group, an aryl group, and a cyano group, 
         wherein M is an element of Group, and 
         wherein at least one of R 6  to R 9  is any one selected from the group consisting of a halogeno group and a haloalkyl group. 
       
     
     
       3. The organometallic complex according to any one of  claims 1  and  2 , wherein the halogeno group is a fluoro group, and the haloalkyl group is a trifluoromethyl group. 
     
     
       4. An organometallic complex comprising a structure represented by the following formula (12), 
       
         
           
           
               
               
           
         
         wherein each of R 2  to R 14  is any one selected from the group consisting of hydrogen, a halogeno group, a haloalkyl group, an acyl group, an alkyl group, an alkoxyl group, an aryl group, and a cyano group, and 
         wherein M is an element of Group 9. 
       
     
     
       5. An organometallic complex comprising a structure represented by the following formula (13), 
       
         
           
           
               
               
           
         
         wherein R 15  or R 16  is any one selected from the group consisting of hydrogen, a halogeno group, and a haloalkyl group, and 
         wherein M is an element of Group 9. 
       
     
     
       6. The organometallic complex according to  claim 4 , wherein at least one of R 6  to R 9  has an electron-withdrawing property. 
     
     
       7. The organometallic complex according to  claim 5 , wherein R 15  or R 16  has an electron-withdrawing property. 
     
     
       8. The organometallic complex according to  claim 4 , wherein the halogeno group is a fluoro group, and the haloalkyl group is a trifluoromethyl group. 
     
     
       9. The organometallic complex according to  claim 5 , wherein the halogeno group is a fluoro group, and the haloalkyl group is a trifluoromethyl group. 
     
     
       10. The organometallic complex according to any one of  claims 1 ,  2 ,  4 , and  5 , wherein the M is an iridium atom.